Re: ANNOUNCE: build system conversion to Meson has landed

[Eric Blake <eblake@redhat.com>]

On 8/21/20 8:49 AM, Peter Maydell wrote:
> Hi; we've just merged Paolo's patchset that converts the build system
> to use Meson. This should mostly be fairly seamless for the average
> developer (we hope) but there are a few things to be aware of:
> 
>   * you probably want to do a distclean or otherwise do a clean build
>     when you first update your git tree to a version of master with Meson
>     (especially if you do in-tree builds)
>   * out-of-tree builds should continue to work basically normally
>   * we have retained compatibility for an "in-tree build" workflow where
>     you run configure/make in the source tree, but this is now implemented
>     by having configure create a build tree for you under-the-hood
>     (but do consider switching to just doing out-of-tree builds)

If you do an in-tree build, do the 'make distclean' _before_ a 'git 
pull' of the new code.  If you don't clean first, the pull attempt is 
likely to complain about various trace.h files, so that is a good 
reminder.  And if you manage to pull anyway, you may need to rewind your 
tree back to v5.1.0 before attempting the in-tree 'make distclean', then 
re-try the pull.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
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